Difference between revisions of "GPD (Generalized periodic discharges)"

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(Created page with "* Any pattern of generalized synchronous, repetitive discharges of similar morphology * Relative symmetric * Periodic, so with interdischarge interval recurring at nearly reg...")
 
 
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** A pattern can qualify as periodic as long as it continues for at least 6 cycles
 
** A pattern can qualify as periodic as long as it continues for at least 6 cycles
 
* Frontal- or occipital-dominant.
 
* Frontal- or occipital-dominant.
* If a more ictal appearance it can be categorized as GPD+:
+
* If a more ictal appearance it can be categorized as GPD+:<ref>ACNS STANDARDIZED ICU EEG NOMENCLATURE v. 2012</ref>
 
**'''+F''': superimposed fast activity.  
 
**'''+F''': superimposed fast activity.  
 
**'''+R''': superimposed rhythmic or quasi-rhythmic activity.  
 
**'''+R''': superimposed rhythmic or quasi-rhythmic activity.  
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*Not to be confused with intermittent rhythmic delta activity (IRDA)
 
*Not to be confused with intermittent rhythmic delta activity (IRDA)
**[[TIRDA (temporal intermittent rhythmic delta activity]]
+
**[[TIRDA (temporal intermittent rhythmic delta activity)]]
 
**[[OIRDA (occipital intermittent rhythmic delta activity)]]
 
**[[OIRDA (occipital intermittent rhythmic delta activity)]]
**[[FIRDA (frontal intermittent rhythmic delta activity]]
+
**[[FIRDA (frontal intermittent rhythmic delta activity)]]
  
 
*Not to be confused with lateralized of bilateral independent periodic discharges:
 
*Not to be confused with lateralized of bilateral independent periodic discharges:
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[[File:GPD_in_a_85_years_old_male_after_a_out_of_hospital_cardiac_arrest.png|border|1200px]]
 
[[File:GPD_in_a_85_years_old_male_after_a_out_of_hospital_cardiac_arrest.png|border|1200px]]
 
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'''Notes'''
 +
<references/>

Latest revision as of 10:23, 3 July 2017

  • Any pattern of generalized synchronous, repetitive discharges of similar morphology
  • Relative symmetric
  • Periodic, so with interdischarge interval recurring at nearly regular intervals.
    • A pattern can qualify as periodic as long as it continues for at least 6 cycles
  • Frontal- or occipital-dominant.
  • If a more ictal appearance it can be categorized as GPD+:[1]
    • +F: superimposed fast activity.
    • +R: superimposed rhythmic or quasi-rhythmic activity.
    • +FR: superimposed fast activity and rhythmic or quasi-rhythmic activity.



GPD’s in a 85 years old male after a out of hospital cardiac arrest (source), the discharges are symmetric, similar morphology with the same interdischarge intervals GPD in a 85 years old male after a out of hospital cardiac arrest.png


Notes

  1. ACNS STANDARDIZED ICU EEG NOMENCLATURE v. 2012